android: Remove unused AccessibilityUtil

chrome/browser/BUILD.gn

Index: chrome/browser/BUILD.gn
diff --git a/chrome/browser/BUILD.gn b/chrome/browser/BUILD.gn
index 87e08200b018cf67e41be2b839d84f8019f76db8..b99e3822ac69c2494d9febaae7ba5476db584681 100644
--- a/chrome/browser/BUILD.gn
+++ b/chrome/browser/BUILD.gn
@@ -2891,8 +2891,6 @@ split_static_library("browser") {
       "after_startup_task_utils_android.h",
       "android/accessibility/font_size_prefs_android.cc",
       "android/accessibility/font_size_prefs_android.h",
-      "android/accessibility_util.cc",
-      "android/accessibility_util.h",
       "android/activity_type_ids.cc",
       "android/activity_type_ids.h",
       "android/android_theme_resources.h",
@@ -4060,7 +4058,6 @@ if (android_java_ui) {
       "../android/java/src/org/chromium/chrome/browser/tabmodel/TabModelJniBridge.java",
       "../android/java/src/org/chromium/chrome/browser/tabmodel/TabModelSelectorBase.java",
       "../android/java/src/org/chromium/chrome/browser/toolbar/ToolbarModel.java",
-      "../android/java/src/org/chromium/chrome/browser/util/AccessibilityUtil.java",
       "../android/java/src/org/chromium/chrome/browser/util/FeatureUtilities.java",
       "../android/java/src/org/chromium/chrome/browser/util/PlatformUtil.java",
       "../android/java/src/org/chromium/chrome/browser/util/UrlUtilities.java",